Synthesis of<i>N</i>-Bz-Protected D-Daunosamine and D-Ristosamine by Silica Gel Promoted Intramolecular Conjugate Addition of Trichloroacetimidates obtained from Osmundalactone and Its Epimer
作者:Yoshitaka Matsushima、Jun Kino
DOI:10.1002/ejoc.200901402
日期:2010.4
osmundalactone and its epimer unexpectedly undergo intramolecular conjugate addition during silica gel chromatography to produce oxazolines in excellent yields. The novel, simple synthesis of N-Bz-protected D-daunosamine and D-ristosamine from these oxazolines is described in this paper.